$ sudo apt-get remove rss2irc 

Uninstall rss2irc including dependent package

If you would like to remove rss2irc and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove rss2irc 

Use Purging rss2irc

If you use with purge options to rss2irc package all the configuration and dependent packages will be removed.

$ sudo apt-get purge rss2irc 

If you use purge options along with auto remove, will be removed everything regarding the package, It's really useful when you want to reinstall again.

$ sudo apt-get purge --auto-remove rss2irc 

See Also,